

Battery Undervoltage Monitor BUW524 | |
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• Continuous measurement and display of voltage |
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Battery Undervoltage Monitor BUW112, BUW124 (discontinued) | |
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• Large setting range 10 - 14V / 20 - 28V |
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Trigger unit for battery undervoltage protection, especially for monitoring the starter battery for diesel-driven generators. In the output, the unit has a two-way contact switched as a normally open contact. |
Digital Frequency Monitor DFW100 | |
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• Two-stage frequency monitor with LCD digital display |
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This unit is used for monitoring the frequency of an AC mains network, especially in free-running off-mains networks, combined heat and power stations and emergency power supplies. As the DFW100 records the connected frequency with high precision ( better than 0.05% ), the unit is also suitable for monitoring the mains frequency in interconnected networks. The frequency monitor has an easy-to-use menu interface with an LCD display. The settings can be reprogrammed by the user during operation of the unit. |
Asymmetrical Load Monitoring Unit SLW150 | |
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• 3-phase load current recording |
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The unit is usually used for motor / generator protection in 3- or 4-wire AC mains networks. It records the current of each individual wire and compares them with the average value for all three phases. In the case of undershooting or overshooting of a phase in comparison with the deviation in % set ( 5-50% ), the internal time circuit is triggered on completion of which the relay switches through. |
Rapid Voltage Monitor ASW500, ASW503 | |
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• Two-stage 3/4-wire phase voltage monitoring |
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Trigger unit for undervoltage and overvoltage protection in 3- or 4-conductor AC mains networks.Each phase is recorded individually and causes the two-way output contacts to be triggered in the case of undershooting or overshooting of the setpoint value. The switching state is displayed via LED`s. Special evaluation circuitry allows rapids recording of values while suppressing interference to a high degree. The undervoltage relay is switched as a normally open contact and the overvoltage relay is switched as a normally closed contact. |
Threshold Time Relay GWZ100, GAZ100, GWG100, GWG200 (discontinued) | |
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• Input signal 0 - 20mA |
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Trigger unit for 20mA applications in 55mm standard housing. Available for pick-up current delay and drop-off time delay of the output relay contacts. The scaling of the adjuster for the threshold ( 0-20mA) can be read off in %. Under the designation of GWG..., the unit is offered as a threshold indicator with a continuously adjustable 0-20 mA signal as an output. |